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Ch 13 chem bond
Ch 14 chem rxn
Ch 9 Heat
Ch 24 Waves Stars
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Question 1 - 10
• Fluorine, F, forms a binary ionic compound with lithium, Li. What is the name of this compound?
Question 1 - 20
• Sodium forms an ionic bond with chlorine when sodium ____ an electron and chlorine ____ an electron.
Question 1 - 50
• Beryllium, Be, and chlorine, Cl, form a binary ionic compound with a one-to-two ratio of beryllium ions to chloride ions. Identify the formula for the compound
Question 2 - 10
• Identify the law that explains why the total amount of energy before and after a chemical reaction is the same.
Question 2 - 20
• In terms of energy, classify the following chemical reaction
• 2Cu + O2 ® 2CuO + 315 kJ (energy)
Question 2 - 40
• Balance the following equation to show the Law of Conservation of Mass and identify the type of reaction it is.
• ____CS2 + ___O2 ___CO2 + ___SO2
Question 3 - 20
• Define what an insulator and a conductor are and give an example of each that are used in everyday life.
Question 3 - 30
• Identify the evidence that supports the fact that desert sand is very hot in the day and very cold at night
Question 3 - 40
• Explain how the transfer of heat energy when you put ice in a drink to cool it off
Question 3 - 50• The diagram represents two blocks whose
temperatures are indicated by thermometers. Use the diagrams to answer the questions below.
• In which direction will the heat move between blocks A and B in?
• At what point will the heat transfer between blocks A and B stop?
Answer 3 – 50
• Heat will move from block A to B.
• Heat transfer will stop when blocks A and B reach the same temperature, called thermal equilibrium.
Question 4 - 10
• When a wave strikes a solid barrier, it behaves like a basketball hitting a backboard. This wave behavior is called
Question 4 - 30
• You are still able to hear sounds coming from a room when the door is open only a tiny crack due to:
Question 4 - 40
• Two large waves on the ocean come together on the ocean’s surface to form a gigantic wave. The interaction responsible for this is called:
Question 5 - 20
• Put the following in the proper order of events according to the Big Bang.
• Rapid expansion of the Universe• First galaxies form• First gas clouds form• First atoms form• First stars form
Answer 5 – 20
• Rapid expansion of the universe• First atoms form• First gas clouds form• First stars form• First galaxies form
Question 5 - 50
• According to the Absorption spectrum of visible light how can one detect that a star is moving away from the earth?